IEC 61850-7-4:2010/AMD1:2020,Communication networks and systems for power utility automation – Part 7-4: Basic communication structure – Compatible logical node classes and data object classes.
You can download this document for free. This standard has about 400 pages. I really want to thank an old engineer from America. His name is Stephen Smith. He is in his 50smore than 50 years old this year. Thank him for his generous sharing.
IEC 61850-7-4:2010+A1:2020 specifies the information model of devices and functions generally related to common use regarding applications in systems for power utility automation. It also contains the information model of devices and function-related applications in substations.
The Code Component will be available in light and full version:
—Full version will contain definition of the whole LNS defined in this standard with the
documentation associated and access will be restricted to purchaser of this part.
—Light version will not contain the documentation but will contain the whole definition of the
LNS as per full version, and this light version will be freely accessible on the IEC website
for download, but the usage remains under the licensing conditions.